North Atlantic Oscillation drives the annual occurrence of an isolated, peripheral population of the brown seaweed Fucus guiryi in the Western Mediterranean Sea
The canopy-forming, intertidal brown (Phaeophyceae) seaweed Fucus guiryi is distributed along the cold-temperate and warm-temperate coasts of Europe and North Africa. Curiously, an isolated population develops at Punta Calaburras (Alboran Sea, Western Mediterranean) but thalli are not present in mid...
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ftdoajarticles:oai:doaj.org/article:e65b435700ac431995817bcb8eb6e4e9 2024-01-07T09:41:56+01:00 North Atlantic Oscillation drives the annual occurrence of an isolated, peripheral population of the brown seaweed Fucus guiryi in the Western Mediterranean Sea Ignacio J. Melero-Jiménez A. Enrique Salvo José C. Báez Elena Bañares-España Andreas Reul Antonio Flores-Moya 2017-11-01T00:00:00Z https://doi.org/10.7717/peerj.4048 https://doaj.org/article/e65b435700ac431995817bcb8eb6e4e9 EN eng PeerJ Inc. https://peerj.com/articles/4048.pdf https://peerj.com/articles/4048/ https://doaj.org/toc/2167-8359 doi:10.7717/peerj.4048 2167-8359 https://doaj.org/article/e65b435700ac431995817bcb8eb6e4e9 PeerJ, Vol 5, p e4048 (2017) Developmental instability Fucus guiryi Stress North Atlantic Oscillation Photosynthesis Medicine R Biology (General) QH301-705.5 article 2017 ftdoajarticles https://doi.org/10.7717/peerj.4048 2023-12-10T01:50:07Z The canopy-forming, intertidal brown (Phaeophyceae) seaweed Fucus guiryi is distributed along the cold-temperate and warm-temperate coasts of Europe and North Africa. Curiously, an isolated population develops at Punta Calaburras (Alboran Sea, Western Mediterranean) but thalli are not present in midsummer every year, unlike the closest (ca. 80 km), perennial populations at the Strait of Gibraltar. The persistence of the alga at Punta Calaburras could be due to the growth of resilient, microscopic stages as well as the arrival of few–celled stages originating from neighbouring localities, and transported by the permanent Atlantic Jet flowing from the Atlantic Ocean into the Mediterranean. A twenty-six year time series (from 1990 to 2015) of midsummer occurrence of F. guiryi thalli at Punta Calaburras has been analysed by correlating with oceanographic (sea surface temperature, an estimator of the Atlantic Jet power) and climatic factors (air temperature, rainfall, and North Atlantic Oscillation –NAO-, and Arctic Oscillation –AO- indexes). The midsummer occurrence of thalli clustered from 1990–1994 and 1999–2004, with sporadic occurrences in 2006 and 2011. Binary logistic regression showed that the occurrence of thalli at Punta Calaburras in midsummer is favoured under positive NAO index from April to June. It has been hypothesized that isolated population of F. guiryi should show greater stress than their congeners of permanent populations, and to this end, two approaches were used to evaluate stress: one based on the integrated response during ontogeny (developmental instability, based on measurements of the fractal branching pattern of algal thalli) and another based on the photosynthetic response. Although significant differences were detected in photosynthetic quantum yield and water loss under emersion conditions, with thalli from Punta Calaburras being more affected by emersion than those from Tarifa, the developmental instability showed that the population from Tarifa suffers higher stress during ontogeny ... Article in Journal/Newspaper Arctic North Atlantic North Atlantic oscillation Directory of Open Access Journals: DOAJ Articles Arctic PeerJ 5 e4048 |
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language |
English |
topic |
Developmental instability Fucus guiryi Stress North Atlantic Oscillation Photosynthesis Medicine R Biology (General) QH301-705.5 |
spellingShingle |
Developmental instability Fucus guiryi Stress North Atlantic Oscillation Photosynthesis Medicine R Biology (General) QH301-705.5 Ignacio J. Melero-Jiménez A. Enrique Salvo José C. Báez Elena Bañares-España Andreas Reul Antonio Flores-Moya North Atlantic Oscillation drives the annual occurrence of an isolated, peripheral population of the brown seaweed Fucus guiryi in the Western Mediterranean Sea |
topic_facet |
Developmental instability Fucus guiryi Stress North Atlantic Oscillation Photosynthesis Medicine R Biology (General) QH301-705.5 |
description |
The canopy-forming, intertidal brown (Phaeophyceae) seaweed Fucus guiryi is distributed along the cold-temperate and warm-temperate coasts of Europe and North Africa. Curiously, an isolated population develops at Punta Calaburras (Alboran Sea, Western Mediterranean) but thalli are not present in midsummer every year, unlike the closest (ca. 80 km), perennial populations at the Strait of Gibraltar. The persistence of the alga at Punta Calaburras could be due to the growth of resilient, microscopic stages as well as the arrival of few–celled stages originating from neighbouring localities, and transported by the permanent Atlantic Jet flowing from the Atlantic Ocean into the Mediterranean. A twenty-six year time series (from 1990 to 2015) of midsummer occurrence of F. guiryi thalli at Punta Calaburras has been analysed by correlating with oceanographic (sea surface temperature, an estimator of the Atlantic Jet power) and climatic factors (air temperature, rainfall, and North Atlantic Oscillation –NAO-, and Arctic Oscillation –AO- indexes). The midsummer occurrence of thalli clustered from 1990–1994 and 1999–2004, with sporadic occurrences in 2006 and 2011. Binary logistic regression showed that the occurrence of thalli at Punta Calaburras in midsummer is favoured under positive NAO index from April to June. It has been hypothesized that isolated population of F. guiryi should show greater stress than their congeners of permanent populations, and to this end, two approaches were used to evaluate stress: one based on the integrated response during ontogeny (developmental instability, based on measurements of the fractal branching pattern of algal thalli) and another based on the photosynthetic response. Although significant differences were detected in photosynthetic quantum yield and water loss under emersion conditions, with thalli from Punta Calaburras being more affected by emersion than those from Tarifa, the developmental instability showed that the population from Tarifa suffers higher stress during ontogeny ... |
format |
Article in Journal/Newspaper |
author |
Ignacio J. Melero-Jiménez A. Enrique Salvo José C. Báez Elena Bañares-España Andreas Reul Antonio Flores-Moya |
author_facet |
Ignacio J. Melero-Jiménez A. Enrique Salvo José C. Báez Elena Bañares-España Andreas Reul Antonio Flores-Moya |
author_sort |
Ignacio J. Melero-Jiménez |
title |
North Atlantic Oscillation drives the annual occurrence of an isolated, peripheral population of the brown seaweed Fucus guiryi in the Western Mediterranean Sea |
title_short |
North Atlantic Oscillation drives the annual occurrence of an isolated, peripheral population of the brown seaweed Fucus guiryi in the Western Mediterranean Sea |
title_full |
North Atlantic Oscillation drives the annual occurrence of an isolated, peripheral population of the brown seaweed Fucus guiryi in the Western Mediterranean Sea |
title_fullStr |
North Atlantic Oscillation drives the annual occurrence of an isolated, peripheral population of the brown seaweed Fucus guiryi in the Western Mediterranean Sea |
title_full_unstemmed |
North Atlantic Oscillation drives the annual occurrence of an isolated, peripheral population of the brown seaweed Fucus guiryi in the Western Mediterranean Sea |
title_sort |
north atlantic oscillation drives the annual occurrence of an isolated, peripheral population of the brown seaweed fucus guiryi in the western mediterranean sea |
publisher |
PeerJ Inc. |
publishDate |
2017 |
url |
https://doi.org/10.7717/peerj.4048 https://doaj.org/article/e65b435700ac431995817bcb8eb6e4e9 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic North Atlantic North Atlantic oscillation |
genre_facet |
Arctic North Atlantic North Atlantic oscillation |
op_source |
PeerJ, Vol 5, p e4048 (2017) |
op_relation |
https://peerj.com/articles/4048.pdf https://peerj.com/articles/4048/ https://doaj.org/toc/2167-8359 doi:10.7717/peerj.4048 2167-8359 https://doaj.org/article/e65b435700ac431995817bcb8eb6e4e9 |
op_doi |
https://doi.org/10.7717/peerj.4048 |
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5 |
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e4048 |
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1787422751363956736 |